📑 Thanks to Facebook, Your Cellphone Company Is Watching You More Closely Than Ever | The Intercept

Annotated Thanks to Facebook, Your Cellphone Company Is Watching You More Closely Than Ever by Sam Biddle (The Intercept)

But these lookalike audiences aren’t just potential new customers — they can also be used to exclude unwanted customers in the future, creating a sort of ad targeting demographic blacklist. ❧